Home / 27,861.39-38,448.39-15,114.33

Finding the Fourth Proportional to 27,861.39, 38,448.39 and 15,114.33

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Solution

The fourth proportional to 27,861.39, 38,448.39 and 15,114.33 is: 20,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.39 : 38,448.39 = 15,114.33 : x
  2. Step 2: Convert to fraction form
    27,861.39/38,448.39 = 15,114.33/x
  3. Step 3: Cross multiply
    27,861.39x = 38,448.39 × 15,114.33
  4. Step 4: Simplify right side
    27,861.39x = 581,121,654.43
  5. Step 5: Solve for x
    x = 581,121,654.43/27,861.39
  6. Step 6: Final answer
    x = 20,857.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.